2016 MERCEDES-BENZ GLC-Class coolant temperature

Top Tether ....................................... 63
Child-proof locks
Important safety notes .................... 65
Rear doors ....................................... 66
Children
Special seat belt retractor ............... 61
Cigarette lighter ................................ 320
Cleaning
Mirror turn signal ........................... 348
Trailer tow hitch ............................. 349
Climate control
Control panel for dual-zone auto-
matic climate control ..................... 141
Controlling automatically ............... 144
Cooling with air dehumidification .. 142
Defrosting the windows ................. 146
Defrosting the windshield .............. 146
ECO start/stop function (dual-
zone automatic climate control) ....1 42
General notes ................................ 140
Indicator lamp ................................ 144
Information about using dual-zone
automatic climate control .............. 141
Ionization ....................................... 149
Overview of systems ......................1 40
Perfume atomizer .......................... 147
Problem with the rear window
defroster ........................................ 147
Problems with cooling with air
dehumidification ............................ 144
Refrigerant ..................................... 414
Refrigerant filling capacity ............. 414
Setting the air distribution ............. 145
Setting the air vents ......................1 49
Setting the airflow ......................... 145
Setting the temperature ................ 145
Switching air-recirculation mode
on/off ............................................ 147
Switching on/off ........................... 142
Switching the rear window
defroster on/off ............................ 146
Switching the synchronization
function on and off ........................ 145
Coat hooks ......................................... 315
Cockpit
Overview ....... ................................... 32 C
OLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 252
Display message ............................ 265
Operation/notes .............................. 70
COMAND display
Cleaning ......................................... 350
Combination switch .......................... 126
Consumption statistics (on-board
computer) .......................................... 245
Convenience closing feature .............. 99
Convenience opening feature ............ 99
Coolant (engine)
Checking the level ......................... 341
Display message ............................ 276
Filling capacity ............................... 413
Important safety notes .................. 412
Temperature display in the instru-
ment cluster .................................. 239
Warning lamp ................................. 299
Cooling
see Climate control
Copyright ............................................. 29
Cornering light function
Display message ............................ 272
Function/notes .............................1 27
Crash-responsive emergency light-
ing ....................................................... 130
Crosswind Assist ................................. 75
Cruise control
Cruise control lever ....................... 182
Deactivating ................................... 183
Display message ............................ 284
Driving system ............................... 181
Function/notes .............................1 81
General notes ................................ 181
Important safety notes .................. 181
Setting a speed .............................. 183
Storing and maintaining current
speed ............................................. 182
Storing the current speed or call-
ing up the last stored speed .......... 182
Cup holder
Center console .............................. 318
Important safety notes .................. 318
Rear compartment ......................... 318
Index7

Stowage compartmentsArmrest (under) ............................. 308
Center console .............................. 307
Cup holders ................................... 318
Door ............................................... 308
Eyeglasses compartment ............... 307
Glove box ....................................... 307
Important safety information ......... 306
Map pockets ..................................3 08
Rear ............................................... 308
Stowage net ................................... 308
see Stowage areas
Stowage net ....................................... 308
Summer tires
In winter ........................................ 376
Sun visor ............................................ 319
Suspension settings
AIR BODY CONTROL ......................1 96
SUV
(Sport Utility Vehicle) ....................... 25
Switching air-recirculation mode
on/off ................................................. 147
T
Tachometer ........................................ 239
Tail lamps
see Lights
Tailgate
Display message ............................ 288
Emergency unlocking ....................... 97
Limiting the opening angle ...............9 7
Obstruction detection ......................9 2
Opening dimensions ......................4 15
Opening/closing .............................. 92
Opening/closing (automatically
from inside) ...................................... 96
Opening/closing (automatically
from outside) ................................... 93
Opening/closing (manually from
outside) ............................................ 93
Tank content
Fuel gauge ....................................... 33
Technical data
Capacities ...................................... 409
Information ....................................4 06
Tires/wheels ................................. 399
Trailer loads ................................... 416 Vehicle data ................................... 415
Telephone
Accepting a call (multifunction
steering wheel) .............................. 250
Display message ............................ 289
Introduction ................................... 250
Menu (on-board computer) ............ 250
Number from the phone book ........2 51
Redialing ........................................ 251
Rejecting/ending a call ................. 250
Temperature
Coolant (display in the instrument
cluster) .......................................... 239
Outside temperature ......................2 39
Setting (climate control) ................ 145
Tire pressure
Calling up (on-board computer) ..... 381
Checking manually ........................ 381
Display message ............................ 285
Maximum ....................................... 380
Not reached (TIREFIT) .................... 359
Notes ............................................. 379
Reached (TIREFIT) .......................... 359
Recommended ............................... 377
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 383
Function/notes .............................3 81
G

eneral notes ................................ 381
Important safety notes .................. 381
Radio type approval for the tire
pressure monitor ........................... 384
Restarting ...................................... 383
Warning lamp ................................. 302
Warning message .......................... 383
Tire-change tool kit ........................... 356
TIREFIT kit .......................................... 358
Tire pressure not reached .............. 359
Tire pressure reached .................... 359
Tires
Aspect ratio (definition) ................. 394
Average weight of the vehicle
occupants (definition) .................... 393
Bar (definition) ............................... 392
Changing a wheel .......................... 395
Characteristics .............................. 392
Checking ........................................ 375
Curb weight (definition) ................. 394
18Index

Instrument cluster
Displays
FunctionPage
:Speedometer
Speedometer segments238
;Multifunction display241
=Tachometer239
?Coolant temperature dis-
play
239
FunctionPage
AFuel gauge
Fuel filler flap location ind i-
cator 8: the fuel filler
cap ison the right-hand
side.
iIn formation on displaying the outside
temperature inthe multifunction display
can befound under "Outside temperature
disp lay" (
Ypage 239).
Instrument cluster33
At a glance

Observe the following when towing a trailer:
RTo gain driving experience and to become
accustomed to the new handling charac-
teristics, you should practice the following
in a traffic-free location:
-cornering
-stopping
-backing up
RBefore driving, check:
-trailer tow hitch
-safety switch for braked trailers
-safety chains
-electrical connections
-lights
-wheels
RAdjust the exterior mirrors to provide an
unobstructed view of the rear section of the
trailer.
RIf the trailer has electronically controlled
brakes, pull away carefully. Brake manually
using the brake controller and check
whether the brakes function correctly.
RSecure any objects on the trailer to prevent
the cargo from slipping when the vehicle is
in motion.
RWhen you couple up a trailer, check at reg-
ular intervals that the load is firmly secured.
If the trailer is equipped with trailer lights
and brakes, check the trailer to ensure that
these are working.
RBear in mind that the handling will be less
stable when towing a trailer than when driv-
ing without one. Avoid sudden steering
movements.
RThe vehicle/trailer combination is heavier,
accelerates more slowly, has a decreased
gradient climbing capability and a longer
braking distance.
It is more susceptible to side winds and
requires more careful steering.
RIf possible, do not brake suddenly, but
instead depress the brake pedal moder-
ately at first so that the trailer can activate its brakes. Then increase the pressure on
the brake pedal.
RIf the automatic transmission repeatedly
shifts between gears on uphill or downhill
gradients, shift to a lower gear using the
left-hand steering wheel paddle shifter.
A lower gear and lower speed reduce the
risk of engine failure.
RWhen driving downhill, shift to a lower gear
to utilize the engine's braking effect.
Avoid continuous brake application as this
may overheat the vehicle brakes and, if
installed, the trailer brakes.
RIf the coolant temperature increases dra-
matically while the air-conditioning system is switched on, switch off the air-condition-
ing system.
Coolant heat can also be dissipated by
opening the windows and switching the
ventilation blower and the interior temper-
ature to the highest level.
RWhen overtaking, pay particular attention
to the extended length of your vehicle/
trailer combination.
Due to the length of the vehicle/trailer
combination, you require addi

tional road
space in relation to the vehicle you are
overtaking before you can change back to
the original lane.
Decoupling a trailer
GWARNING
If you uncouple a trailer with the overrun
brake engaged, you could trap your hand
between the vehicle and the trailer drawbar.
There is a risk of injury.
Do not uncouple a trailer if the overrun brake
is engaged.
!Do not disconnect a trailer with an
engaged overrun brake. Otherwise, your
vehicle could be damaged by the rebound-
ing of the overrun brake.
Towing a trailer233
Driving and parking
Z

The segments in the speedometer indicate
which speed range is available.
RCruise control activated (Ypage 181):
The segments light up from the stored
speed to the type-tested maximum speed.
RDISTRONIC PLUS activated (Ypage 183):
One or two segments in the set speed
range light up.
RDISTRONIC PLUS detects a vehicle in front
that is driving at a slower speed than the
stored speed:
The segments between the speed of the
vehicle in front and the stored speed light
up.
Tachometer
!
Do not drive in the overrevving range, as
this could damage the engine.
The red band in the tachometer indicates the engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached.
Outside temperature display
You should pay special attention to road con-
ditions when temperatures are around freez-
ing point.
Bear in mind that the outside temperature
display indicates the temperature measured
and does not record the road temperature.
The outside temperature display is in the mul-
tifunction display (
Ypage 241).
Changes in the outside temperature are dis-
played after a short delay.
Coolant temperature display
GWARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
!A display message is shown if the coolant
temperature is too high.
If the coolant temperature is over 248 ‡
(120 †), do not continue driving. The
engine will otherwise be damaged.
The coolant temperature display is in the
lower section of the tachometer (
Ypage 33).
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature may rise to 248 ‡ (120 †).
Operating the on-board computer
:Multifunction display
;Right control panel
=Left control panel
XTo activate the on-board computer: turn
the SmartKey to position 1in the ignition
lock.
You can control the multifunction display and
the settings in the on-board computer using
Displays and operation239
On-board computer and displays
Z

Engine
Display messagesPossible causes/consequences andMSolutions
+
Check Coolant
Level See Opera‐
tor's Manual
The coolant level is too low.
!Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
XAdd coolant, observing the warning notes before doing so
(
Ypage 341).
If you have to add coolant frequently:
XContact a qualified specialist workshop and have the engine
cooling system checked.
?The fan motor is faulty.
XAt coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic.
?
Coolant Too Hot
Stop Vehicle Turn
Engine Off
The coolant is too hot.
A warning tone also sounds.
GWARNING
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
XPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 172).
XWait until the engine has cooled down.
XMake sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
XDo not start the engine again until the display message goes out
and the coolant temperature is below 248 ‡ (120 †). Other-
wise, the engine could be damaged.
XPay attention to the coolant temperature display.
If the temperature increases again:
XVisit a qualified specialist workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120†) .
276Displa y messages
On-board computer and displays

Engine
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
;NThe yellow Check Engine warning lamp lights up while the engine is running.
There may be a malfunction, for example:
Rin the engine management
Rin the fuel injection system
Rin the exhaust system
Rin the ignition system (for vehicles with gasoline engines)
Rin the fuel system
The emission limit values may be exceeded and the engine may be in emer-
gency mode.
XVisit a qualified specialist workshop immediately.
In some states, you must immediately visit a qualified specialist workshop as
soon as the yellow Check Engine warning lamp lights up. This is due to the legal
requirements in effect in these states. If in doubt, check whether such legal
regulations apply in the state in which you are currently driving.
8N The yellow reserve fuel warning lamp lights up while the engine is running.
The fuel level has dropped into the reserve range.
XRefuel at the nearest gas station.
8N The yellow reserve fuel warning lamp flashes while the vehicle is in motion.
In addition, the ;Check Engine warning lamp may light up.
The fuel system pressure is too low. The fuel filler cap is not closed correctly
or the fuel system is leaking.
XCheck that the fuel filler cap is correctly closed.
XIf the fuel filler cap is not correctly closed: close the fuel filler cap.
XIf the fuel filler cap is closed:visit a qualified specialist workshop.
?NThe red coolant warning lamp lights up while the engine is running and the
coolant temperature gage is at the start of the bar display.
The temperature sensor for the coolant temperature gage is defective.
The coolant temperature is no longer being monitored. There is a risk of engine
damage if the coolant temperature is too high.
XPull over and stop the vehicle safely and switch off the engine, paying
attention to road and traffic conditions. Do not continue driving under any
circumstances.
XSecure the vehicle against rolling away (Ypage 172).
XConsult a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster299
On-board computer and displays
Z

Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
?NThe red coolant warning lamp comes on while the engine is running.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator may be blocked
or the electric engine radiator fan may be malfunctioning.
The coolant is too hot and the engine is no longer being cooled sufficiently.
XObserve the additional display messages in the multifunction display.
XPull over and stop the vehicle safely and switch off the engine, paying
attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 172).
XLeave the vehicle and keep a safe distance from the vehicle until the engine has cooled down.
XCheck the coolant level and add coolant, observing the warning notes
(
Ypage 341).
XIf you have to add coolant frequently, have the engine cooling system
checked.
XMake sure that the air supply to the engine radiator is not blocked, e.g. by
snow, slush or ice.
XDo not start the engine again until the coolant temperature is below 248 ‡
(120 †). Otherwise, the engine could be damaged.
XDrive to the nearest qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in mountainous
terrain and stop-start traffic.
?N The red coolant warning lamp comes on while the engine is running. A
warning tone also sounds.
The coolant temperature has exceeded 248 ‡ (120 †). The airflow to the
engine radiator may be blocked or the coolant level may be too low.
GWARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive when your engine is overheated. This can cause some fluids which
may have leaked into the engine compartment to catch fire.
Steam from the overheated engine can also cause serious burns which can
occur just by opening the hood.
There is a risk of injury.
XObserve the additional display messages in the multifunction display.
XPull over and stop the vehicle safely and switch off the engine, paying
attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 172).
300Warning and indicator lamps in the instrument cluster
On-board computer and displays